Unless you only you only want to power some speakers with your HU don't waste your money on these. I just blew up two more today, with only 30 watts, I've blown up the plates and the 3-ways. These were all professionally installed at a shop. I finally said screw it and ordered some DEI Studio Series 5.25 comps and a DEI Directed 250 amp, I'm gonna put my remaining two Pioneer plates in the rear doors and power them off the HU and power my comps with 75x2 off the DEI amp. What's everyone's opinion on DEI I'm expecting to get some of the best comps for under $300 and at least 75x2 of clean power from the amp. I got the these off Soundomain.com for 200 for comps and 250 for the amp, I also got a door dynomat kit for $1 and a Stinger amp kit for $1, I thought it was a pretty good deal.